« previous next »

Author Question: Suppose the force of the air drag on an object is proportional to the speed of the object and in the ... (Read 300 times)

saliriagwu

  • Hero Member
  • *****
  • Posts: 537
on: Jul 29, 2018
Suppose the force of the air drag on an object is proportional to the speed of the object and in the direction opposite the object's velocity. If you throw an object upward, the magnitude of its acceleration is greatest
 
  A) right after the object is released.
  B) at the top of its trajectory.
  C) The acceleration of the object is the same throughout the entire trajectory.

Question 2

If the absolute temperature of an object is tripled, the thermal power radiated per unit surface area of this object will (assuming that its emissivity is not affected by the temperature change)
 
  A) increase by a factor of 3.
  B) increase by a factor of 9.
  C) increase by a factor of 18.
  D) increase by a factor of 27.
  E) increase by a factor of 81.


medine

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Gravitational Redshift The color of light from the same object located at diffe Gravitational Redshift The color of light from the same object located at diffe
A basic principle of symbolic interactionism is that meaning is not inherent in an object or event, ... A basic principle of symbolic interactionism is that meaning is not inherent in an object or event, ...
A scope display showing a normal Chevrolet Equinox MAF sensor at idle speed. the frequency is 2,600 ... A scope display showing a normal Chevrolet Equinox MAF sensor at idle speed. the frequency is 2,600 ...
finding the resultant force finding the resultant force
Let A ⊆ R and p ∈ A. Suppose A\{p}6= ∅. Prove that p is an isolated point of A if and ... Let A ⊆ R and p ∈ A. Suppose A\{p}6= ∅. Prove that p is an isolated point of A if and ...
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ...
Video: Heart Chambers

For a complete list of videos, visit our video library